Question

When a disaster occurs, all people, ________ they are old or young, rich or poor, try their best to help those in need.

A．no matter

B．whether

C．however

D．even though

Answer 1

B

考查连词，根据后面的old or young ，和rich or poor,可知，该空选择whether，
句意为，当一个遭难发生的时候，所有的人，无论年老还是年轻，富有还有贫穷，都会尽全力帮助有需要的人。